Conceptual Design Security requirements a Data confidentiality -secure channel to prevent information leakage a Data integrity -data should not be altered when transmitted from node to node a Data freshness-data should be up-to-date w/o any replay of old messages a Authentication- verify identity of source a Availability -preserve energy while providing securit a Self organization -robustness to overcome node failures and node compromiseConceptual Design ❑ Data confidentiality –secure channel to prevent information leakage ❑ Data integrity – data should not be altered when transmitted from node to node ❑ Data freshness – data should be up-to-date w/o any replay of old messages ❑ Authentication – verify identity of source ❑ Availability – preserve energy while providing security ❑ Self organization –robustness to overcome node failures and node compromise 12 Security Requirements